var leftPosition = 0;
var topPosition = 0;

var ch = document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight;
var cw = document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth;

leftPosition = (cw / 2) - 483;
topPosition = (ch / 2) - 258;

var modalWindow = {
    parent: "body",
    windowId: null,
    content: null,
    width: null,
    height: null,
    close: function() {
        $(".modal-window").remove();
        $(".modal-overlay").remove();
    },
    open: function() {
        var modal = "";
        modal += "<div class=\"modal-overlay\"></div>";
        modal += "<div id=\"" + this.windowId + "\" class=\"modal-window\" style=\"width:" + this.width + "px; height:" + this.height + "px; left:" + leftPosition + "px; top:" + topPosition + "px;\">";
        modal += this.content;
        modal += "</div>";
        $(this.parent).append(modal);
    }

};


var openMyModal = function() {
    var locationOfIframe = "http://";
    if (document.location.href.toLowerCase().indexOf("http://www.") != -1) {
        locationOfIframe = "http://www.";
    }
    modalWindow.windowId = "myModal";
    modalWindow.width = 966;
    modalWindow.height = 516;
    modalWindow.content = "<iframe src=\"" + locationOfIframe + "ittiam.com/HPSplash.htm\" scrolling=\"no\" width=\"966\" height=\"516\" frameborder=\"0\"  style=\"border-style: none; border-color: inherit; border-width: 0px; overflow:hidden; width: 966px;height:516px;\" />";
    modalWindow.open();
}